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<p style="margin: 10px 0 0 0">The third of those is really only available with the verbose logging of the libcurl handshake, and there's no API to derive it otherwise.</p>
<p style="margin: 10px 0 0 0">I can certainly log what it's telling libcurl to do, but that won't tell you what ciphers or protocols it supports in the normal case, since the most common cipher suite expression involves negation (what not to use). Again, there's no API to derive that that I'm aware of through curl. I think OpenSSL does, so there might be something I could do with that by just calling around curl into OpenSSL, and assuming that the results would be consistent.</p>
<p style="margin: 10px 0 0 0">The actual setting of cipher suites is doable with TransportOption. I think it's not worth doing more unless I revise xmltooling for other reasons and then I could add an exposed option for it.</p>
<p style="margin: 10px 0 0 0">Lastly, the protocol thing: heh. Circle of life:<br /> <a href="https://sourceforge.net/p/curl/feature-requests/27/" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://sourceforge.net/p/curl/feature-requests/27/</a></p>
<p style="margin: 10px 0 0 0">I tried to get him to support this years ago, but curl still doesn't allow you to turn off protocols, only turn a specific one on. So you can't really do this, and since they pretty much have stopped adding OpenSSL-specific features, I don't think there's much chance of it now.</p>
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